MoraETamils - Mora Exams- 4 - [gf;.5 Ig; ghu;f;f AL/2019/02/T-II(A),e;epuypy; vjidAk; vOJjy; MfhJ. 02. (a) ntz;zpwj;jpz;kk; A MdJ td;ikahf ntg;gNkw;wg;gLk; NghJ %y ,ay;Gila

[gf;. 2 Ig; ghu;f;f

[KOg;gjpg;GupikAilaJ/ All Rights Reserved]

AL/2019/02/T-II(A)

guPl;rfupd; cgNahfj;jpw;Fkhj;jpuk;

gFjp tpdh ,y. Gs;spfs;

A

1

2

3

4

B

5

6

7

8

C 9

10

nkhj;jk;

rjtPjk;

,Wjpg; Gs;spfs;

,yf;fj;jpy;

vOj;jpy;

FwpaPl;nlz;fs;

tpilj;jhs; guPl;rfu; 1

tpilj;jhs; guPl;rfu; 2

Gs;spfisg; guPl;rpj;jtu;

Nkw;ghu;it nra;jtu;

Rl;nlz; :……..……………………… ,t; tpdhj;jhs; 17 gf;fq;fisf; nfhz;Ls;sJ.

fzpg;ghid gad;gLj;jf; $lhJ.

Mfpy thA khwpyp R = 8.314 J K−1mol−1

mtfhjNuh khwpyp NA = 6.022 × 1023 mol−1

,t; tpdhj;jhSf;F tpil vOJk; NghJ mw;ifw; $l;lq;fisr; RUf;fkhd tpjj;jpy; fhl;lyhk;.

c-k; : CH3CH2- I vdf; fhl;lyhk;.

gFjp A - mikg;Gf; fl;Liu ( gf;fq;fs; 2 – 10 )

vy;yh tpdhf;fSf;Fk; tpilfis ,t; tpdhj;jhspNyNa vOJf.

xt;nthU tpdhTf;Fk; tplg;gl;Ls;s ,lj;jpy; ckJ tpilfis vOJf.

nfhLf;fg;gl;Ls;s ,lk; ckJ tpilfSf;Fg; NghJkhdJ vd;gijAk; tpupthd tpilfs; mtrpakpy;iy vd;gijAk; ftdpf;f.

gFjp B - fl;Liu ( gf;fq;fs; 11 - 17 )

xt;nthU gFjpapypUe;Jk; ,uz;L tpdhf;fisj; njupT nra;J vy;yhkhf ehd;F tpdhf;fSf;F tpil vOJf. ckf;F toq;fg;gLk; jhs;fis ,jw;F gad;gLj;Jf.

,t;tpdhj;jhSf;nfd toq;fg;gl;l Neu Kbtpy; gFjp A NkNy ,Uf;Fk; gbahf A, B, C Mfpa %d;W gFjpiaAk; xd;whfr; Nru;j;Jf; fl;ba gpd;du; guPl;ir Nkw;ghu;itahsuplk; ifaspf;f.

tpdhj;jhspd; gFjpfs; B, C ia khj;jpuk; guPl;ir kz;lgj;jpypUe;J ntspNa vLj;Jr; nry;y mDkjpf;fg;gLk;.

- 2 -

[gf;.3Ig; ghu;f;f

AL/2019/02/T-II(A) ,e;epuypy; vjidAk; vOJjy; MfhJ.

gFjp A – mikg;Gf; fl;Liu ehd;F tpdhf;fSf;Fk; tpil vOJf.

(xt;nthU tpdhtpw;Fk; 10 Gs;spfs; toq;fg;gLk ;)

01. a) MtHj;jd ml;ltizapd; Kjy; gj;J %yfq;fisAk; fUj;jpw; nfhz;L gpd;tUk;

,ay;Gfisf; fhl;Lk; %yfq;fis ,dq;fz;L mtw;wpd; FwpaPLfisj; jUf.

(i)

I. fUNtw;wj;jpw;Fr; rkkhd gUkDila gad;gLfUNtw;wj;jpid czUfpd;w

,yj;jpud; xd;wpidf; nfhz;lJ : ……………………....................

II. kpff; Fiwe;j xl;rpNaw;w vz;iz cilaJ : ……………………....................

III. mjpAaH kpd;ndjphpay;G cilaJ : ……………………....................

(ii) Nkw;gb tpdh (II) ,y; ,dq;fhzg;gl;l %yfk; tpdh (I), (III) ,y;

,dq;fhzg;gl;l %yfq;fSld; jdpj;jdpNa cUthf;Fk; NrHitfspd;

,urhadr; #j;jpuq;fis vOJf.

…………………………………………………………………………………………….

(iii) Nkw;gb tpdh (ii) ,y; vOjg;gl;ltw;Ws; caH kpd;ndjphpay;Gila ika

mZtpidf; nfhz;l NrHitia ,dq;fz;L mjd; cau; kpd;ndjpupay;gpw;fhd

fhuzq;fis RUf;fkhf jUf.

……………………………………………………………………………………………

……………………………………………………………………………………………

…………………………………………………………………………………………...

b) Chlorine dioxide MdJ (ClO2) miwntg;gepiyapy; fhu Clfj;jpy;

,Utoptpfhukile;J +3, +5 xl;rpNaw;w vz;zpw;Fupa ,U xl;Nrh md;dad;fis

jUfpd;wJ.

(i) +5 xl;rpNaw;w vz;zpw;Fhpa xl;Nrh md;dadpd; ,urhadr; #j;jpuj;jpidAk;

IUPAC ngaiuAk; vOJf.

……………………………………………………………………………………………

(ii) Nkw;gb tpdh (i) ,y; ePu; Fwpg;gpl;;l md;dadpw;fhd midj;Jg; ghpTf;

fl;likg;Gf;fisAk; tiuf.

- 3 -

[gf;.4 Ig; ghu;f;f


(iii) ghpTf; fyg;gpw;F NkNy tpdh (ii) ,y; tiue;j ghpTf; fl;likg;Gf;fspd;

gq;fspg;gpid nghUj;jkhd fhuzq;fSld; tpghpg;gJld; nghUj;jkhd

ghpTf;fyg;igAk; tiuf.

…………………………………………………………………………….………………

…………………………………………………………………………….………………

…………………………………………………………………………….………………

…………………………………………………………………………….………………

…………………………………………………………………………….……………..

(iv) Nkw;gb tpdh (i) ,y; Fwpg;gpl;l md;dadpd; gpizg;Gf; Nfhzq;fs;,

gpizg;GePsq;fs; vd;gtw;iw jFe;j fhuzq;fSld; jdpj;jdpNa xg;gpLf.

(mstwp ngWkhdk; mtrpakd;W)

…………………………………………………………………………….………………

……………………………………………………………………………….……………

……………………………………………………………………………….……………

……………………………………………………………………………….……………

(v) HClO2 ,d; cWjpahd Y}ap fl;likg;ig tiuf.

(vi) ePu; NkNy tpdh (v) ,y; tiue;j Yhap fl;likg;gpYs;s FNshupd; mZtpidAk;>

IjurDld; ,ize;j xl;rprd; mZtpidAk; fUj;jpw;nfhz;L gpd;tUk;

ml;ltizapid epug;Gf.

tplak; Cl

O

fyg;ghf;fk;

,yj;jpud; Nrhbf; Nfj;jpufzpjk;

mZf;fspd; xOq;fikg;G tbtk;

xl;rpNaw;w vz;

c) milg;Gf;Fwpf;Fs; jug;gl;bUf;Fk; ,ay;gpd; mbg;gilapy; VWtupirg;gLj;Jf.

(i) F, Cl, Br (,yj;jpud; ehl;lk;)

..........……………………………………………………………………………….……

(ii) CH4, NH3, NF3 (,UKidTj; jpUg;Gjpwd;)

………..............……………………………………………………………….…………

(iii) CF4, CBr4, CCl4 (C ,d; kpd;ndjpu;j;jd;ik)

….........………………………………………………………………………………….

(iv) Na+(g), Mg

2+(g), Al

3+(g) (ePNuw;wy; ntg;gTs;Siw)

……….........……………………………………………………………………….……

(v) CH3OH, NaCl, I2 (ePH %yf;$WfSld; cUthFk; ,ilaPHg;G typik)

………….......…………………………………………………………………….………

- 4 -

[gf;.5 Ig; ghu;f;f


02. (a) ntz;zpwj;jpz;kk; A MdJ td;ikahf ntg;gNkw;wg;gLk; NghJ %y ,ay;Gila

xl;irl;L B Ak; epwkw;w thA C Ak; ngwg;gl;ld. ntspNawpa thA C ,id

mkpyg;gLj;jpa K2Cr2O7 fiurypD}lhf nrYj;jpa NghJ fiurypd; epwk;

khw;wkilatpy;iy. A I Ijhd HCl fiurYld; jhf;fk; Gupar; nra;j NghJ

fiury; D ngwg;gl;lJ. fiury; D ,w;F rpwpjsT (NH4)2C2O4 fiuriyr; NrHj;j

NghJ ntz;zpw tPo;gbT E ngwg;gl;lJ. ntz;zpw tPo;gbT E MdJ Ijhd

mrw;wpf;fkpyj;jpy; fiuatpy;iy. A ,w;F nrwpe;j HCl Nru;f;fg;gl;L ngwg;gl;l

tpisit Rthiyapy; gpbj;j NghJ nrk;kQ;rs;rptg;G (nrq;fl;br;rptg;G) epwk;

mtjhdpf;fg;gl;lJ.

i. A njhlf;fk; E tiuahd $Wfis ,dq;fhz;f.

A……………………………………………………………………….…………….

B…………………………………………………………………………….…….....

C……………………………………………………………………………………..

D…………………………………………………………………………………….

E…….………………………………………………………………………………..

ii. 1000 ºC ntg;gepiyapy; jpz;k epiyg; gjhu;j;jk; E ,d; ntg;gg;gpupiff;fhd

rkd; nra;j ,urhadr; rkd;ghl;ilj; jUf.

…………………………………………………………………….……………….

iii. B ,w;F ePH Nru;j;J ngwg;gl;l fiurypd; Clhf FspHepiyapy; <uZ thA

%yf;$W X2 Ir; NrHj;j NghJ ntspw;wpnahd;W ngwg;gl;lJ.

1. X ,d; ,urhadf; FwpaPL ahJ?

…………………………………………………………………….……………

2. ntspw;wpia ,dq;fhz;f.

………………………………………………………………….………………

3. NkNy (2) ,y; Fwpg;gpl;l ntspw;wp ngwg;gLtjw;fhd rkd; nra;j

,urhadr; rkd;ghl;ilj; jUf.

…………………………………………………………………….……………

iv. NrHit A ,Ys;s fw;waid cUthf;Fk; %yfk; mike;Js;s

$l;lj;jpYs;s midj;J %yfq;fspdJk; fw;wad;fs;> NrHit A ,Ys;s

md;daDld; cUthf;Fk; cg;Gf;fspd; ntg;gTWjp khWk; Nghf;ifj; jUf.

……………………………………………………………………….………..........

,k;khw;wg; Nghf;fpw;fhd fhuzj;ij Fwpg;gpLf.

…………………………………………………………………………….…………

…………………………………………………………………………….…………

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……………………………………………………………………………….……...

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[gf;.6 Ig; ghu;f;f


v. X ,d; $l;l Ijiul;Lfspd; nfhjpepiy khWk; Nghf;if fPOs;s tiugpy;

Fwpj;Jf; fhl;Lf.

vi. thA C I fw;fupAld; NrHj;J ntg;gkhf;Fk; NghJ mJ jho;j;jg;gl;L <uZ

thAnthd;W ngwg;gLfpd;wJ.

1. <uZ thAit ,dq;fhz;f.

…………………………………………………………………………………...

2. <uZ thAtpd; gad;fs; ,uz;L jUf.

……………………………………………………………………….…………

……………………………………………………………………….….……….

(b)

i. A, B, C, D Mfpatw;iw ,dq;fhz;f.

A…………………………………………C…………………………………………

B…………………………………………D………………………………................

ii. A ,ype;J B, C, D Mfpad ngwg;gLtjw;fhd rkg;gLj;jpa ,urhadr;

rkd;ghLfisj; jUf.

………………………………………………………………………………………

………………………………………………………………………………………

…………………………………………………………….....................................

iii. thA B MdJ <uZ thA (M2) clDk; ePUlDk; jhf;fk; Gupa tpl;l NghJ

L Njhd;wpaJ. nrwpthf;fg;gl;l L MdJ ghFj;jd;ikahd jputkhf

fhzg;gLk;.

1. M2, L Mfpatw;iw ,dq;fhz;f.

M2………………………………………L……………………............…………

epwkw;w jpz;kk; A

dil HCl(aq)

NaOH(aq)

ntg;gNkw;wy;

fgpy epwKila thA (B)

epwkw;w %y thA (C)

rlj;Jt <uZ thA (D)

A ia njhlHr;rpahf ntg;gNkw;Wk; NghJ jpz;k kPjp vQ;rtpy;iy.

Ijiul;L nfhjpepiy

- 6 -

[gf;.7 Ig; ghu;f;f


2. L ,d; Nkw;gb cUthf;fj;Jld; rk;ge;jg;gl;l rkd; nra;j ,urhadr;

rkd;ghl;ilj; jUf.

……………………………………………............……………………………..

3. L MdJ xspapurhadj; jhf;fj;jpw;Fl;gLtjw;fhd rkd; nra;j ,urhadr;

rkd;ghl;ilj; jUf.

……………………………………………………………………………..........

4. L MdJ fhgd;, fe;jfj;ij xl;rpNaw;Wtjw;fhd rkd; nra;j ,urhadr;

rkd;ghLfis nghUj;jkhd epge;jidfSld; jUf.

……………………………………………………………………….………….

……………………………………………………………………….................

5. L %ykhfr; nraw;gLk; jhf;fk; xd;wpw;fhd rkd; nra;j ,urhadr;

rkd;ghl;ilj; jUf.

………………………………………………...........…………………………..

6. L MdJ mjdpYk; cWjp Fiwe;j NrHit Q ,ypUe;J NtW

jhf;FnghUl;fs; ,y;yhky; ,ay;ghfNt cUthf;fg;glyhk;.

i. Q I ,dq;fhz;f.

………………………………………………………………………………...

ii. Q ,ypUe;J L cUthFk; jhf;fj;ijj; jUf.

………………………………………………………………………...........…

iii. Q ,ypUe;J L cUthFk; jhf;fj;jpd; tifiaf; Fwpg;gpLf.

……………………………………………………………......…………….…

7. Q, L ,dJ Y}ap; fl;likg;Gfis tiuf.

03. (a)

vDk; jhf;fk; fPo;tUk; %d;W gbKiwfspD}lhf eilngWfpd;wJ.

+ I2 H

+

+ HI CH3 – C – CH3

O O

CH3 – C – CH2I

gb 01 : H+

+ (nkJthdJ)

O

CH3 – C – CH3 CH3 – C – CH3

+OH

(tpiuthdJ) gb 03 : I2 +

HI +

O

CH3 – C – CH2I CH3 – C = CH2

OH

(tpiuthdJ) gb 02 : H+ +

CH3 – C = CH2

OH

CH3 – C – CH3

+OH

- 7 -

[gf;.8 Ig; ghu;f;f


i. Nkw;gb jhf;fj;jpd; tPjkhwpyp k vdpd; jhf;ftPjk; R ,w;fhd tPj tpjpf;

Nfhitia vOJf.

………………………………………………………………………………...

ii. jhf;fj;jpd; xl;L nkhj;j jhf;f tupir ahJ?

………………………………………………………………………………...

iii. jhf;fp I2 rhu;ghd jhf;f tupir ahJ? fhuzk; fUf.

………………………………………………………………………………...

…………………………………………………………………………….......

iv. Nkw;gb jhf;fj;jpy; H+ ,d; tfpghfk; ahJ? fhuzk; jUf.

………………………………………………………………………………...

...………………………………………………………………………………

………………………………………………………………………………...

v. NkNy tpdh (ii), (iv) ePu; toq;fpa tpilfspd; mbg;gilapy; ngwf;$ba KbT

ahJ?

………………………………………………………………………………...

vi. CH3COCH3 ,d; nrwpTf;Fk; Neuj;jpw;Fkhd tiuigAk;, Vida jhf;fpfspd;

nrwpT khwhjpUf;f log (Rate) ,w;Fk; log [CH3COCH3] ,w;Fkhd tiuigAk;

tiuf.

(b) 127 ºC ,y; thA P ,d; 0.02 mol ntw;wplkhf;fg;gl;l 2 dm3 khwhf; fdtsTila

ghj;jpuj;jpy; vLf;fg;gl;L jpz;k Cf;fp Nru;f;fg;gl;l NghJ mJ fPOs;sthW

gpupifaile;jJ.

2P(g) → Q(g) + 2R(g)

P(g) ,d; nrwpT Neuj;Jld; khWgLtJ fPOs;s tiugpdhy; fhl;lg;gLfpd;wJ.

[CH

3C

OC

H3]

log (

Rat

e)

Neuk; log [CH3COCH3]

20 5 10 15

[P] / mol dm-3

Neuk; / s

0.020

0.015

0.010

0.005

- 8 -

[gf;.9Ig; ghu;f;f


i. jhf;fj;jpd; tupir> tPj khwpyp Mfpatw;iw KiwNa p, k vdf; nfhz;L

tPjf;Nfhitia vOJf.

………………………………………………………………………………...

ii. fhuzk; je;J p apd; ngWkhdj;ij Fwpg;gpLf.

………………………………………………………………………………...

………………………………………………………………………………...

………………………………………………………………………………...

iii. jhf;fj;jpd; miutho;Tf;fhyk; ahJ?

………………………………………………………………………………...

iv. Nkw;gb jhf;fj;jpd; miutho;Tf;fhyk; t12 =

0.693

k vdpd; jhf;ftPj khwpyp k

If; fzpf;f.

………………………………………………………………………………...

………………………………………………………………………………...

………………………………………………………………………………...

………………………………………………………………………………...

(v) P(g) ,d; njhlf;f mstpd; 25% gpupiff;F cl;gLj;jg;gl;bUg;gpd;

nfhs;fyj;jpDs; epyTk; mKf;fj;ijf; fzpf;f. Cf;fpapd; fdtsitg;

Gwf;fzpf;fyhk; vdf; nfhs;f.

………………………………………………………………………………...

………………………………………………………………………………...

………………………………………………………………………………...

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- 9 -

[gf;.10Ig; ghu;f;f


04. (a) A, B, C, D vd;gd C4H11N vDk; %yf;$w;Wr; #j;jpuj;jpw;F rhj;jpakhd

fl;likg;Gr; rkgFjpaq;fshFk;. ,it ahTk; NaNO2 / HCl cld; jhf;fk; Gupe;J

KiwNa E, F, G, H Mfpa Nru;itfis tpisTfshf nfhLj;jd. ngwg;gl;l

tpisTfs; ehd;Fk; PCl5 cld; ntz;Gifia tpisthff; nfhLj;jd.

rkgFjpaq;fs; ehd;fpYk; A khj;jpuk; xspapay; rkgFjpa jd;ikia fhl;baJ.

NrHit B ahdJ A apd; fhgd; rq;fpypapd; fl;likg;ig xj;jJ. H MdJ

ZnCl2 / con HCl cld; cldbahf fyq;fy; jd;ikia Vw;gLj;jpaJ.

i. A, B, C, D Mfpatw;wpd; fl;likg;Gfis fPNo jug;gl;Ls;s ngl;bfspy;

tiuf. (jpz;kj; Njhw;w rkgFjpaq;fis tiua Ntz;bajpy;iy)

ii. E, F, G, H vd;gtw;wpy; jpz;kj; Njhw;w rkgFjpaj;ij ntspf;fhl;lf;$ba

Nru;itapd; fl;likg;ig tiuf.

iii. NkNy tpdh (ii) ,y; Fwpg;gpl;l Nru;itia con H2SO4 ,dhy; ePufw;Wk;

NghJ nggwg;gLk; tpisTk; jpz;kj; Njhw;w rkgFjpaj; jd;ikia

ntspf;fhl;Lfpd;wJ. mt;tpistpd; jpz;kj; Njhw;w rkgFjpaq;fis tiuf.

(b) fPo; jug;gl;Ls;s jhf;fj;jpl;lj;ijf; fUJf.

A B

C D

CH3C ≡ C – H P

+

Q

CH3MgBr / cyH <jH

1)

2) H2O

R

C – C ≡ C – CH3

OH

CH3

C – CH2CH2CH3

Br

CH3

COCH3

- 10 -


,q;F cUthFk; P MdJ xU td;%ykhFk;. R MdJ Nrhbaj;Jld; jhf;fp H2

thAit ntsptplf;$baJ. P, Q, R Mfpa NrHitfspd; fl;likg;Gfis fPNo

jug;gl;Ls;s cupa ngl;bfspy; tiuf.

(c) fPNo jug;gl;Ls;s jhf;fq;fspy; cUthfpa gpujhd tpisTfspd;

fl;likg;Gf;fis cupa ngl;bfspy; tiuf.

1.

2.

3.

4.

5.

6.

7.

8.

R2O2 /

HBr CH3CH = CH2

CH3CH = CH2 con. H2SO4

CH3CH = CH – C – OH

O

1) LiAlH4

2) H2O

C6H5OH/ NaOH

0-5 ºC

C6H5N2+Cl

-

1) 2, 4 DNP

2) ePufw;wy; CH3CHO

con. H2SO4

Δ

CH2 –CH – CH3

OH

cyH AlCl3

CH2 = CH – CH2Cl

CHO

CH3COCl

cyH AlCl3

R P Q

[gf;. 12 Ig; ghu;f;f

AL/2019/02/T-II(B,C)/(NEW)

Mfpy thA khwpyp R = 8.314 J K−1 mol−1

mtfhjNuh khwpyp NA = 6.022 × 1023mol−1

gFjp B - fl;Liu ,U tpdhf;fSf;F khj;jpuk; tpil vOJf. (xt;nthU tpdhtpd; tpilf;Fk; 15 Gs;spfs; toq;fg;gLk;).

05. (a) 28 ºC ,y; SO2(g), O2(g) vd;gd 2:1 vDk; %y; tpfpjj;jpy; xU %ba ghj;jpuj;jpy; vLf;fg;gl;L Cf;fp Nru;f;fg;gl;l NghJ fPNo jug;gl;l rkepiynahd;W cUthfpaJ.

2SO2(g) + O2(g)⇌ 2SO3(g)

rkepiyf; fyitapYs;s SO2(g) ,d; gFjpaKf;fk; 24 kPa MfTk;> ghj;jpuj;jpd; nkhj;j

mKf;fk; 104 kPa MfTk; ,Ue;jJ.

i. O2 thAtpd; gFjpaKf;fj;ijAk; mjd; %y; gpd;dj;ijAk; fzpf;f.

ii. SO3(g) ,d; gFjpaKf;fj;ijf; fzpj;J> rkepiy khwpyp Kp If; fzpf;f.

iii. 28 ºC ,y; nrwpT rhHghd rkepiy khwpyp Kc If; fzpf;Ff. (28 ºC ,y;

RT =2500J mol-1 vd;f)

iv. 28 ºC ,y; SO3(g), SO2(g), O2(g) vd;gd KiwNa 80 kPa, 70 kPa, 20 kPa

gFjpaKf;fq;fspy; %ba ghj;jpunkhd;wpy; vLf;fg;gl;L jhf;fk; Muk;gpf;fg;gl;lhy;

mf;fzj;jpy; jhf;f <T Qp If; fzpf;f. Qp ngWkhdj;ljpd; mbg;gilapy; jhf;fk; efUfpd;w jpiriaf; fhuzq;fSld; Fwpg;gpLf.

v. epak mKf;fk; rhHghd rkepiy khwpyp ahJ?

(b)fPNo rpy ntg;gtpurhadj; juTfs; jug;gl;Ls;sd.

NrHit ΔHθf (kJmol

-1)

C7H16(l) -200

CO2(g) -400

H2O(l) -300

i. NkYs;s juTfisg; gad;gLj;jp C7H16 jputj;jpd; epak jfd ntg;gTs;Siwiaf; fzpf;Ff.

ii. 200g C7H16 jputj;jpidj; jfdpg;gjd; %yk; 100ºC ,Ys;s ePupd; vt;tsT jpzpit

100ºC ,Ys;s Mtpahf khw;w KbAk;. (toq;fg;gLk; ntg;gj;jpd; 10% #oYf;F

,of;fg;gLk; vdTk; ePupd; Mtpahjypd; ntg;gTs;Siw khw;wk; 45kJmol-1 vdTk; nfhs;f.)

- 12 -


AL/2019/02/T-II(B,C)/(NEW)

iii. 25ºC ,y; xU kdpjdpd; Rthrk; epkplj;jpw;F 15 jlitfs; MFk;. xU cl;Rthrj;jpd;

fdtsT 500cm3 MFk;. cl;Rthr tspapy; 21% ck; mNj fdtsT ntspr;Rthr

tspapy; 16% ck; O2 thA fdtsTg;gb fhzg;gl;lJ. gad;gl;l xl;rprd; KOtJk;

C12H22O11 jpz;kj;jpidj; jfdpf;fg; gad;gl;ljhff; nfhs;f. tspkz;ly

mKf;fk; = 1 x 105 Pa vd;f. ΔH

θC[C6H12O6(s)] = - 2800 kJ mol

-1 vdpd;

a. xUehspy; jfdpf;fg;gl;l C6H12O6 ,d; %y; msT ahJ?

b. jfdj;jpd; %yk; xU ehspy; ntsptplg;gl;l ntg;g rf;jpiaf; fzpf;f.

06. (a) i. C mol dm-3

nrwpTila CH3COOH ePu;f;fiury; xd;wpd; pH = ½ pKa – ½ log C vdf;

fhl;Lf. (,q;F Ka –nkd;dkpyj;jpd; $l;lw;gpupT khwpyp)

ii. mkpyj;jpd; madhf;f khwpyp Ka = 2x10-5

mol dm-3

MfTk; CH3COOH(aq) ,d; nrwpT

0.1 mol dm-3 MfTk; mikAnkdpd; fiurypd; pH If; fzpf;f.

iii. 0.1 mol dm-3

CH3COOH(aq) ,d; 25.0cm3 I epakpg;Gf; FLitapDs; vLj;J jFe;j

fhl;bia gad;gLj;jp 0.1 mol dm-3

NaOH(aq) My; epakpf;fg;gLfpd;wJ. fPo;tUk;

NaOH(aq) ,d; fdtsTfs; ,lg;gLk; xt;nthU re;jHg;gj;jpYk; FLitapYs;s

fiurypd; pH If; fzpf;f.

NrHf;fg;gLk; NaOH(aq) ,d; fdtsTfs; : 10.00 cm3, 24.95 cm

3, 25.05 cm

3, 30.00 cm

3

iv. rktYg;Gs;spapy; fiurypd; pH = ½ pKa + ½ pKw + ½ log S vdf; fhl;Lf. (S – cg;gpd; nrwpT my;yJ ,iz %yj;jpd; nrwpthFk;)

rktYg;Gs;spapd; pH ahJ? (Kw = 1 x 10-14

mol2 dm

-6)

v. NaOH(aq) ,d; fdtstpw;F vjpuhf fiurypd; pH ,d; khwiy tiuGgLj;Jf.

vi. fPo;tUk; fhl;bfspy; xd;iw Nkw;gb epakpg;gpw;Fg; nghUj;jkhd fhl;bahfj; NjHe;njLf;Ff. Fwpj;j fhl;bia ePu; njupT nra;jikf;fhd fhuzk; ahJ?

fhl;b pKIn

nkijy; nrk;kQ;rs;

GNuhNkhijNkhy; ePyk;

gpNdhg;jyPd;

nkijy;rptg;G

3.7

7.1

9.6

5.0

(b) xU fiuryhdJ 0.1 mol dm-3

M2+

(aq) IAk; 0.1 mol dm-3

N2+

(aq) IAk; nfhz;Ls;sJ.

,f;fiurypw;F 0.1 mol dm-3

H2S(aq) nrYj;jg;gLfpd;wJ.

(Ksp(MS) = 1.6 x10-24

mol2 dm

-6, Ksp(NS) = 6.3 x10

-18 mol

2 dm

-6)

(Ka1(H2S) = 9.1x10-8

mol dm-3

, Ka2 (H2S) = 1.0 x10-19

mol dm-3

)

i. MS I tPo;gbthf;fj; Njitahd S2-

(aq) ,d; mjpFiwe;j nrwpitf; fzpf;f.

ii. MS I tPo;gbthf;f fiuriy itj;jpUf;f Ntz;ba mjpFiwe;j pH ahJ?

iii. NS I tPo;gbthf;fj; Njitahd S2-

(aq) ,d; mjpFiwe;j nrwpitf; fzpf;f.

iv. ,U fw;wad;fisAk; Ntwhf;f fiuriy itj;jpUf;f Ntz;ba pH tPr;R ahJ?

v. M2+

(aq) I kl;Lk; tPo;gbthf;fp N2+

(aq) I tPo;gbthfhky; jLf;f fiurypy; ,Uf;f

Ntz;ba mjpFiwe;j [H3O+(aq)] I ca;j;jwpf.

- 13 -


AL/2019/02/T-II(B,C)/(NEW)

07. (a) A, B, C, D vDk; FNuhkpaj;jpd; rpf;fyaidf; nfhz;l NrHitfspd; #j;jpuq;fs; KiwNa

CrO6H12Cl3, CrO5H10Cl3, CrO4H8Cl3, CrO3H6Cl3 ,tw;wpYs;s rpf;fyad; gFjp vz;Nfhzf; Nfj;jpufzpj tbtj;ij cilaJld; ika mZitr; Rw;wp Mff;$baJ ,uz;L tifahd ,izapfNs fhzg;glyhk;. ,izg;gpypy;yhjit xNu tifiar;

rhHe;jitahFk;. midj;J rpf;fy; Nru;itfspYk; Cr xNu xl;rpNaw;w vz;zpy; fhzg;gLfpwJ.

i. Nkw;Fwpj;j NrHitfspy; Cr ,d; xl;rpNaw;w vz; ahJ?

ii. Nkw;Fwpj;j NrHitfspy; Cr ,d; ,yj;jpud; epiyaikg;igj; jUf.

iii. A, B, C, D Mfpatw;wpd; fl;likg;Gr; #j;jpuq;fisj; jUf.

iv. A, B, C, D Mfpatw;wpd; IUPAC ngau;fisj; jUf.

v. A, B, C, D Mfpa fiury;fs; xt;nthd;wpdJk; 1 mol tPjk; fyf;fg;gl;L fiury; S

jahupf;fg;gl;lJ. fiury; S ,Ds; kpifasT AgNO3(aq) NrHf;fg;gl;L ngwg;gLk; tPo;gbthdJ tbj;J cyHj;jp epWj;J jpzpT mwpag;gl;lJ. mjd; jpzpT ahJ?

(Ag =108, Cl =35.5)

(b) 1. fPo;tUk; tiuglkhdJ kpd;dpurhadf;fyk; xd;iwg; gpujpepjpj;Jtg;gLj;Jfpd;wJ.

Nkw;gb fyk; njhopw;gLk; NghJ eilngWk; fyj;jhf;fk; tUkhW.

6Cl-(aq) + 2Au

3+(aq) → 3Cl2(g) + 2Au(s)

Msp S jpwe;Js;s epiyapy; Nthy;w;Wkhdpapd; thrpg;G 0.14 V MFk;.

i. eilngWk; xl;rpNaw;wy; miuj;jhf;fj;ijj; jUf.

ii. eilngWk; jho;j;jy; miuj;jhf;fj;ijj; jUf.

iii. fyj;jpd; fyf;FwpaPl;ilj; jUf.

iv. Cl2(g)/Cl-(aq)kpd;thapd; epakkpd;tha; mOj;jk; +1.36 V vdpd; Au

3+(aq) / Au(s) ,d;

epak kpd;tha; mOj;jj;ijf; fzpf;Ff.

v. Msp S %lg;gLk; NghJ kpd;Fkpo; xspu Muk;gpf;fpd;wJ. ,e;epiyapy; Nthy;w;Wkhdpapd; thrpg;Gf;F ahJ epfOk;? tpsf;Ff.

2. Fwpj;jnthU kpd;gFg;G nraw;ghl;by; 0.1 mol dm-3 nrwpTila

LiBr fiurypd; 100 cm3

MdJ Mg kpd;tha;fis nfhz;L kpd;gFg;Gr; nra;ag;gl;lJ. 100 mA kpd;Ndhl;lk; xU Fwpj;j Neuj;jpw;Fr; nrYj;jg;gl;l NghJ tPo;gbnthd;W cUthtJ mtjhdpf;fg;gl;lJ.

I. mNdhl;by; eilngWk; jhf;fj;ijj; jUf.

II. fNjhl;by; eilngWk; jhf;fj;ijj; jUf.

III. kpd;gFg;gpd; NghJ epfOk; epfuj; jhf;fk; ahJ?

IV. kpd;gFg;Gj; njhlq;fp vt;tsT Neuj;jpy; tPo;gbT kl;Lkl;lhfj; Njhd;w

Muk;gpf;Fk;? ( Ksp(Mg(OH)2) = 12 × 10-12

mol3 dm

-9, 1 F = 96500 C mol

-1)

cg;Gg;ghyk;

S

V

Au(s)

Au3+

(aq,1moldm-3

)

Cl2(g)

Pt(s)

Cl-(aq,1moldm

-3)

- 14 -


AL/2019/02/T-II(B,C)/(NEW)

gFjp C

08. (a) fPNojug;gl;Ls;s ,urhadg; nghUl;fisg; gad;gLj;jp gpd;tUk; khw;wPl;il 9 gbfSf;F Nkw;glhJ epfo;j;Jf.

Mg, con HBr, HBr(g), cyH <jH, HCHO,

C6H5NH2, NaBH4, C2H5OH, KOH, H2O, PCC

(b) gpd;tUk; jhf;fj;jpl;lj;ij g+uzg;gLj;Jtjw;fhf R1 – R5, X1 – X4, Y1 – Y3 Mfpatw;iw ,dq;fhz;f.

(c) i. CH3CH = CH2 ,w;F nrwpe;j H2SO4 NrHf;Fk; NghJ cUthFk; tpistpd; fl;likg;ig je;J mjw;fhd jhf;f nghwpKiwia jUf.

ii. propene, 2-methylpropene vd;gtw;Ws; vJ HBr(g) cld; cau; Ntfj;jpy; jhf;fkilAk; vd;gij fhuzq;fSld; jUf.

iii. HCHO, CH3CHO, CH3COCH3 Mfpa NrHitfspd; fUehl;l $l;;ly; jhf;f Ntfk; vt;thW khWgLk; vd xOq;FgLj;jp mt;thW khWtjw;fhd fhuzj;ij RUf;fkhf jUf.

CH3CH2CH2COCH3 →

CH3CH2

CH3CH2

CH –CH = N

NaOH /∆

X1

X2

X3

X4

R1

R2

R3

Y1

Y2

R4

R5

C – O – CH2 CH – CH – CH3

O

Br Br

NO2

Y3

C – O – CH2

O

C ≡ C – CH3

- 15 -


AL/2019/02/T-II(B,C)/(NEW)

09. (a) A vDk; ePHf;fiurypy; ,U fw;wad;fSk; ,U md;dad;fSk; cs;sd. ,f;fw;wad;fisAk; md;dad;fisAk; ,dq;fhz;gjw;Fg; gpd;tUk; gupNrhjidfs; nra;ag;gl;ld. fw;wad;fis fz;lwpjy;

gupNrhjid mtjhdpg;G

(1) A MdJ Ijhd HCl ,dhy; mkpykhf;fg;gl;L mjD}lhf H2S thA Fkpopaplg;gl;lJ.

fWg;G tPo;gbT (P) cUthfpaJ.

(2) gupNrhjid (1) ,ypUe;J ngw;w tbjputk; nfhjpf;f itf;fg;gl;L ngwg;gLk; fiurYf;F HNO3 NrHj;Jr; #lhf;fp gpd; Fsputpl;L ngwg;gLk; fiurYf;F NH4Cl(aq) / NH4OH(aq) NrHf;fg;gl;lJ.

xU njspe;j fiury; ngwg;gl;lJ.

(3) gupNrhjid (2) ,ypUe;J ngw;w fiurYf;F (NH4)2CO3(aq) NrHf;fg;gl;lJ.

njspe;j fiury; ngwg;gl;lJ.

(4) gupNrhjid (3) ,ypUe;J ngw;w fiurYf;F 8–hydroxyquinoline NrHf;fg;gl;lJ.

kQ;rl;gr;ir epwkhd tPo;gbT/ rpf;fy;

(Q) ngwg;gl;lJ.

P,Q,w;fhdNrhjidfs;

(5) tPo;gbT P I Ijhd HNO3(aq) cld; nfhjpf;fr; nra;j gpd; mNkhdpahf; fiury; kpifahfr; NrHf;fg;gl;lJ.

fUePyepwr; rpf;fw;NrHit (E)

ngwg;gl;lJ

(6) Q ,y; ngwg;gl;l rpf;fYf;F kpifahf Al

3+(aq) NrHf;fg;gl;L cUthFk;

tbjputj;jpw;F NaOH(aq) kpifahfr; NrHf;fg;gl;lJ.

ntz;zpw tPo;gbT (R) ngwg;gl;lJ.

md;dad;fisf; fz;lwpjy;

(7) A ,d; xU gFjpf;F Ijhd HCl fiury; Nru;f;fg;gl;lJ.

mtjhdpg;G vJTk; ngwg;gltpy;iy.

(8) A ,d; gpwpnjhU gFjpf;F Al J}s; NrHf;fg;gl;L gpd;dH NaOH(aq) cld;; nfhjpf;f itf;fg;gl;lJ.

epwkw;w fhukhd kzKila thA (X)

ntspNawpaJ.

(9) A ,d; kw;nwhU gFjpf;F FeSO4

fiury; NrHf;fg;gl;L rpwpJ Neuk; tspapy; jpwe;J itf;fg;gl;lJ.

Neuk; nry;yr; nry;y fiury; FUjpr;rptg;G epwkhf khwpaJld; epwr;nrwpTk; mjpfupj;jJ.

i. fiury; A ,Ys;s ,U fw;wad;fisAk; ,U md;dad;fisAk; ,dq;fhz;f (fhuzq;fs; mtrpakpy;iy)

ii. P, E, R, X Mfpatw;wpd; ,urhadr; #j;jpuq;fis vOJf.

iii. gupNrhjid (8) ,y; eilngWk; jhf;fj;jpw;fhd rkg;gLj;jpa mad; rkd;ghl;ilj; jUf.

iv. fw;wad; gupNrhjid (2) ,y; NH4OH(aq) Ir; NrHf;f Kd;G NH4Cl(aq) Nru;f;fg;gl;lJ. ,jw;fhd fhuzj;jpid tpsf;Ff.

(b) CuS, FeS, ZnS, rlj;Jt khR Mfpatw;iw nfhz;l jpz;kf; fyitnahd;wpd; 4.0 g MdJ

kpif 0.3 mol dm-3 mkpy KMnO4 fiurypd; 200 cm

3 cld; gupfupf;fg;gl;lJ. ntspNaWk;

SO2 thAit Kw;whf mfw;Wtjw;fhf fiury; ntg;gg;gLj;jg;gl;lJ. mj;Jld;

tpisthFk; Mn2+ ck; tpNrl nrad;Kiw xd;wpd; %yk; mfw;wg;gl;L ngwg;gl;l

tpisTf; fiury; Z gpd;tUk; eilKiwfSf;F cl;gLj;jg;gl;lJ.

- 16 -


AL/2019/02/T-II(B,C)/(NEW)

eilKiw : 01

fiury; Z ,d; 100 cm3 vLf;fg;gl;L 1 mol dm

-3 Fe

2+(aq) cld; epakpf;fg;gl;l NghJ mjd;

25 cm3Njitg;gl;lJ.

eilKiw : 02

fiury; Z ,d; gpwpnjhU 50 cm3 vLf;fg;gl;L kpif NH3 fiury; ,lg;gl;L ngwg;gLk;

tPo;gbT tbj;J khwhj;jpzpT ngwg;gLk; tiu td;ikahf ntg;gg;gLj;jg;gl;l NghJ

0.16 g jpz;k kPjp ngwg;gl;lJ. eilKiw : 03 eilKiw 02 ,ypUe;J ngw;w tbjputj;jpw;F kpifasT Ijhd mkpyk; Nru;f;fg;gl;L

mNkhdpah KOtJk; eLepiyahf;fg;gl;l gpd;du; kpifahf KI(aq) Nru;f;fg;gl;lJ.

tpLtpf;fg;gl;l I2(aq) I epakpf;f 0.2 mol dm-3

Na2S2O3 fiurypd; 30.0 cm3 Njitg;gl;lJ.

1. eilngWk; jhf;fq;fSf;fhd rkg;gLj;jpa rkd;ghLfis jUf.

2. khjpupapYs;s CuS, FeS, ZnS ,d; jpzpTr; rjtPjq;fisf; fzpf;f.

(Cu- 63.5, Fe- 56, Zn- 65, S- 32, O- 16, H- 1)

10. (a) rpy ifj;njhopy; cw;gj;jpr; nrad;Kiwfs; njhlHghf fPNo jug;gl;l gha;r;rw;Nfhl;L

tupg;glj;ij fUJf. X1 njhlf;fk; X4 tiuahdit ,aw;if tsq;fisAk; P1 njhlf;fk;

P17 tiuahdit cw;gj;jpg; nghUl;fisAk; tiff;Fwpf;fpd;wd. X1 njhlf;fk; X4

tiuahd $WfisAk; P1 njhlf;fk; P17 tiuahd $WfisAk; ,dq;fhz;f.

P3 – rikayiwapy; gad;gLj;jg;gLk; gjhHj;jk;

P4 – capu;r; Rtl;L vupnghUSf;fhd khw;W vupnghUs;

P6 – md;whl tho;tpy; mOf;ffw;Wk; Njitf;fhf gad;gLj;jg;gLfpwJ.

P10 – ntspw;wp

P15 – ntJg;gf cw;gj;jpg; nghUl;fspd; jahupg;gpy; gad;gLj;jg;gLfpwJ.

Fwpg;G: X1 ,d; nehjpj;jypy; P1 rpwpjstpy;

ngwg;gLfpwJ> P2 ngUkstpy; ngwg;gLfpwJ.

+

P17

+

+

+

+

X1 X2 X3

P1

P2

P3

P4 P5

nehjpj;jy;

P6

P8

Acetobacter gf;uPupahtpd; njhopw;ghL

P9

P10

nrwpthf;fy;

kpd;gFg;G

P11

P12 P13

P15

P16

H2O

Δ

Δ

NH3

P14

P7

7

X4

P13

+

- 17 -

AL/2019/02/T-II(B,C)/(NEW)

(b) thfdg; GifNghf;fpfspy; ,Ue;J ntspNaWk; rpy rpy gjhHj;jq;fs; #upa xsp Kd;dpiyapy; jhf;fkile;J kdpjDf;Fj; jPq;F gaf;Fk; nrad;Kiw xd;iw Vw;gLj;Jfpd;wd.

i. Nkw;gb gjhu;j;jq;fshy; Njhw;Wtpf;fg;gLk; jPq;F gaf;Fk; nrad;Kiw vt;thW miof;fg;gLk;?

ii. ,r;nrad;Kiwapy; cUthf;fg;gLk; jPq;F gaf;Fk; $Wfs; ahit?

iii. ,e;epfo;T jho; tspkz;lyj;jpy; cUthf;fj;jij njhlu;e;J epfo;fpwJ. O3

cUthf;fj;Jld; rk;ge;jg;gl;l jhf;fq;fisj; jUf.

iv. Nkw;gb jPq;F gaf;Fk; nrad;Kiwahy; kdpjd; vjpHNehf;Fk; gpur;rpidfisf; Fwpg;gpLf.

v. Nkw;gbjPq;Fgaf;Fk; nrad;Kiw cUthjiy jLf;Fk; topKiwfs; %d;W jUf.

vi. O3 If; nfhz;L ePiur; Rj;jpfupf;fyhk;. ,r;Rj;jpfupj;jypYs;s mD$yk; xd;iwAk; gpujp$yk; xd;iwAk; Fwpg;gpLf.

(c) gy;gFjpaf; ifj;njhopYld; rk;ge;jg;gl;l rpy ,urhadr; NrHitfs; jug;gl;Ls;sd.

i. ,q;F gy;gFjpaj;jpd; xt;nthU kPs;tUk; myfpYk; (Repeating unit) XH ,ul;ilg; gpizg;igf; nfhz;bUf;ff;$ba xUgFjpa gjhHj;jk; vJ?; mg;gy;gFjpaj;jpd; kPs;tUk; myifj; jUf.

ii. ntg;gk; ,of;Fk; xLq;fy; gy;gFjpaj;ij cUthf;ff; $bait vit? kPs;tUk; myifAk; gy;gFjpaj;jpd; ngaiuAk; jUf.

iii. mjpfsT ntg;gj;ijj; jhq;ff;$ba ntg;gkpsf;Fk; gy;gFjpaj;ijj; juf;$baJ vJ? mjdJ gy;gFjpa fl;likg;igj; jUf. ,J mjpf ntg;gj;ij jhq;Ftjw;fhd fhuzk; ahJ?

iv. Kg;gupkhz ntg;gkpWf;Fk; FWf;F xLq;fy; gy;gFjpaj;ij cUthf;ff; $bait vit? ,g;gy;gFjpa cUthf;fj;jpy; gad;gLj;jg;gLk; Cf;fp ahJ?

v. nu[pNghk; cw;gj;jpapy; gad;gLj;jg;gLtJ vJ? ,jd; kPs;tUk; myiff; Fwpg;gpLf.

CH = CH2

(A)

HCHO

(B)

COOH

(C)

COOH

OH

(E)

CH2 = C – CH = CH2

CH3

(D)

C2F4

(F)

HO – CH2CH2 – OH

(G)

Documents

MoraETamils - Mora Exams- 4 - [gf;.5 Ig; ghu;f;f AL/2019/02/T-II(A),e;epuypy; vjidAk; vOJjy; MfhJ. 02. (a) ntz;zpwj;jpz;kk; A MdJ td;ikahf ntg;gNkw;wg;gLk; NghJ %y ,ay;Gila